SKU: 5291128550

Comtek BST-25/216 Synthesized Base Station Transmitter

Sale price$130871.25 Regular price$145412.50
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Description

Comtek BST-25/216 Synthesized Base Station Transmitter57 Channels in the 216 217MHz Range Single Window, Bright LED Display VU Bar Graph Meter Test Tone Generator Balanced Mic or Line Level Micro Controller Rackmountable Telescopic Antenna Mounts Operates w the Phonak MicroEar Receiver 12 Volt DC Power The BST 25 216 Synthesized Base Station Transmitter from Comtek is an auxiliary base station transmitter designed to operate in the newly assigned 216 217MHz band under part 95 of the FCC regulations. For

  • 57 Channels in the 216-217MHz Range
  • Single Window, Bright LED Display
  • VU Bar Graph Meter
  • Test Tone Generator
  • Balanced Mic or Line Level
  • Micro Controller
  • Rackmountable
  • Telescopic Antenna Mounts
  • Operates w/ the Phonak MicroEar Receiver
  • 12 Volt DC Power

The BST-25/216 Synthesized Base Station Transmitter from Comtek is an auxiliary base station transmitter designed to operate in the newly assigned 216-217MHz band under part 95 of the FCC regulations. For highest fidelity operation, the PR-216 receiver must be used with the wide-band companded channels.

This transmitter may be used for personal cueing, for tour guide applications, language interpretation and for assistive listening. The BST-25/216 also operates with the Phonak microEar VHF in-ear receiver in the narrow-band non-companded channels.

The BST-25/216 transmitter incorporates the latest digital and analog technologies to produce low residual noise, wide dynamic range, and extended frequency response rendering the most natural sound possible from a wireless system.

57 user-selectable channels in the 216 to 217MHz range: 38 standard narrow-band, non-companded channels; 19 high-fidelity narrow-band channels with companded audio processing
Single window, bright LED display for exact frequency and channel, VU bar graph meter, antenna condition and lock-out indicator
Test tone generator for receiver testing and audio level referencing
Balanced mic or line level with 60 dB of control range to accommodate any audio level
Micro controller automatically sets the modulation deviation, audio mode for processing, and the EQ when corresponding channels are selected
It can be rackmounted for AC or 12 V DC power and can accommodate a variety of remote antennas
In the Box
Comtek BST-25/216 Synthesized Base Station Transmitter
  • C-16 Carrying Case
  • BST-25 Operator's Manual
  • TWA-72 Whip Antenna
  • AP-12V1 Power Adapter
  • 1-Year Warranty
Audio Inputs Mic XLR, 600 ohm balanced -40dBV (nominal)
Line XLR, 10 kohm balanced 0dBV (nominal)
Connectors XLR-3 female audio input connector for mic and line input
XLR-4 male power input 12 V
BNC type RF output connector
Indicators LED bar graph VU meter displays audio input (modulation)
Two digit alpha numeric display shows operating channel
Five digit numeric display shows operating frequency
Antenna indicator displays deficient antenna condition
Lock out indicator shows tuning has been disabled
Antenna Telescopic antenna mounts directly into top of transmitter
BNC RF output connector for optional external antenna
FCC Compliance Type accepted under Part 95
Power Requirements 12 V DC, 300 mA max
Freq. Response (Rec/Repro) 80Hz-8kHz
Audio Distortion Less than 1% at 80% modulation
Modulation Soft compressor type with high (25 dB) linear overload protection, attack time less than 1ms, recovery time 10ms
Gain Control Greater than 40 dB
Generators Test tone: 400Hz 0.05% distortion
Modulation Frequency: 5 and 10kHz deviation
RF Output Power Set for 100mW for FCC Part 95
Frequency Stability Better than 20 ppm. digitally synthesized, crystal controlled
Operating Frequency 216-217MHz
Harmonic & Spurious Emissions Better than 55 dB below carrier
Dimensions (W x H x D) 6.5 x 1.8 x 5.6" (165.1 x 45.7 x 142.4mm)
Weight 2.8 lb. (1.2kg)
Packaging Info
Package Weight 8.0 lb
Box Dimensions (LxWxH) 24.0 x 11.0 x 8.0"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5291128550

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Rasheda
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★★★★★ 5
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Color: Black, Item Package Quantity: 2
Love these. Such a big hit in my house
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Reviewed in the United States on April 4, 2026
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AndreaLM
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★★★★★ 3
nice LITTLE tables
Color: Black, Item Package Quantity: 2, Color: Black, Item Package Quantity: 2
these tables are ..... easy to assemble sturdy nice to look at HOWEVER missing 2 stars for... they are small and plugging in items such as my laptop cord made it bulky and always in my way. if there was a middle shelf that would help with the small tops if the outlet bar was on the side or under the top that would help with the bulky cord issue
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Reviewed in the United States on November 10, 2025
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Amazon Customer
Bozeman, US
★★★★★ 5
I give a 10,
Color: Black, Item Package Quantity: 1
I love it easy to symbol
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Reviewed in the United States on March 23, 2026
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PJay
Charlottesville, US
★★★★★ 1
End table
Color: Black, Item Package Quantity: 2
Size was not what I expected
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Reviewed in the United States on May 16, 2026
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Kelypsoo
San Leandro, US
★★★★★ 5
Need Battery's
Size: 31 x 7, Color: Black-rgb, Size: 31 x 7, Color: Black-rgb
Good floating shelves. I mounted the light strip on the top instead of the bottom because they don't stick well. For the price I wish they came with a set of batteries for the pack and the remote. But over all sturdy and well made.
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Reviewed in the United States on May 25, 2026

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